My evaluation routine involves a few steps. I'm primarily interested in good black and white results, so you'll see the bias to testing for that.
- Linearization check for black and white with my ColorMunki and Quadtone RIP to check for problems, especially in the shadows
- Jon Cone's "Proof of Piezo" image to confirm highlights and shadows, and to make sure fine detail is acceptable
For black and white work, the last two are very important. The Cone test in particular is merciless.
This is very interesting to me as I'm also more concerned with printing b\w. If you weren't satisfied with some aspect of these two tests, like tonal separation in the blacks, where and what would you adjust in the printing process to affect the desired change?
When I wrote this, I was using Quadtone RIP for printing with Eboni Variable Tone ink, which is an open source monochrome inkset that I mixed in my basement from Paul Roark's formulation.
There were a lot of things to work on if I wasn't happy. I had to be sure the inks themselves had been mixed properly. I was careful so I never thought that was the issue (but it could have been).
The toughest challenge was building the profile used by Quadtone RIP for printing with that batch of ink on that batch of paper. This was a lot of work -- very steep learning curve. I got very close to what I consider perfect, but I could never get all the way. For example, I always had a bit of banding in the bullseye tests, a sign that things aren't quite right.
The results were good even when I got close, but when my Epson 3880 died and I bought a Canon Pro-1000, the first thing I did was make prints of images I'd printed with the Eboni inks, and then compare. I was not amused to discover that the Canon printer made better black and white. One caveat though is that I had to try several printing systems to find one that worked to my satisfaction. I ended up using Qimage One. I never became comfortable with Lightroom's print module, and the Canon software was very good, but I had issues with shadows on some prints.